RHOPALOCERA. 
Family IV.— PAPILIONID^. 
Papiliomdx, Leach, " SamoiiGlle's Comp., p. 234 (1819)." 
Papilioiiides and Pier ides, Boisduval, Sp. Gen. Lep., i. pp. 171 and 402 
(1836). 
Papilionidx, Swainson, "Phil. Mag., Ser. II. vol. i. p. 187 (1827);" and 
Hist, and Nat. Arr. Ins., p. 86 (1840). 
Papilionidx, Westwood, Intr. Mod. Class. Ins., ii. p. 347 (1840). 
Papilionidge and Pieridx, Doubleday, Gen. Diurn. Lep., i. pp. i and 32 
(1846-47). 
Papilionidx, Bates, Journ. Ent., 1861, p. 219. 
Paptlw?iidse Siiid Pieridse, Trimen, Rhop. Afr. Aust., i. pp. 10 and 24 (1862). 
Imago. — First pair of legs in both sexes as fully developed in all 
respects as the other pairs. Discoidal cell always closed in both fore 
and hind wings. 
Larva. — In Pierinoe cylindrical, tapering to each extremity, without 
processes or other appendages, usually with very short pubescence : in 
Papilioninm stouter, often thickened towards anterior extremity, smooth, 
or with long tubercular prominences, possessing on second (prothoracic) 
segment an exsertible strongly- scented forked tentacle. 
Pupa. — More or less angulated ; head singly pointed in Pierinoe, 
bifid in Papilionince ; attached erectly, obliquely, or horizontally, by 
the tail and by a girth round the middle. 
The two Sub-Families, Pierinm and Papilionince, which compose 
this Family, are readily distinguishable by the characters of the per- 
fect insect. The Pierinoe have in the fore-iuings the first disco-cellular 
nervule either obsolete or very short ; the third disco-cellular and lower 
radial nervules disposed as in other butterflies ; the branches of the 
sub-costal nervure varying in number from three to five ; no interno- 
median nervule ; and the internal nervure rarely present, and then 
very short and slender, and running into the submedian nervure : in 
the hind-ivings the inner margins are convex, forming a groove or 
channel beneath the abdomen, and the internal nervure is long and 
strong ; the precostal nervure is always simple. The palpi are of 
moderate size and porrected ; the antenna have a straight club. The 
legs are short, and there is no appendage to the tibia of the first pair ; 
the tarsal claws are bifid, and usually provided with pulvilli and paro- 
nychia. The abdomen is slender, and nearly always of moderate length 
VOL. III. A 
